* Upgrades PhysX System Software to version 9.10.0223.* Adds support for OpenGL 4.0 for GeForce GTX 400 Series GPUs.* Adds support for CUDA Toolkit 3.1 which includes significant performance increases for double precision math operations. See CUDA Zone for more details.* Adds a new NVIDIA Control Panel setup page for SLI and PhysX for ultimate control over multi-gpu configurations.* Adds a new NVIDIA Control Panel feature for ultimate control over CUDA GPUs, allowing the user to effectively choose which GPU will power each CUDA application.* Includes numerous bug fixes. Refer to the release notes on the documentation tab for information about the key bug fixes in this release.* Users without US English operating systems can select their language and download the International driver.